Improvement in devices for crimping lamp-chimneys



A. HARCUM.

DEVICE FOR CRIMPING LAMP-CHIMNEYS.

No.188',626. Patented March 20.1877.

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a UNITED STATES PATENT FFTQET ANDREW HARGUM, OF SCOTT TOWNSHIP,ALLEGHENY COUNTY, ASSIGNOR OF ONE-HALF HIS RIGHT TO JAMES LINDSAY &(10., OF PITTSBURG, PA.

IMPROVEMENT IN DEVICES FOR CRIMPING LAMP CHIMNEYS.

Specification forming part of Letters Patent No. 188,626, dated March20, 1877; application filed February 26, 1877.

To all whom it may concern:

Be it known that 1, ANDREW HARGUM, of Scott township, in the county ofAllegheny, and State of Pennsylvania, have invented a new and usefulImprovement in Devices for Crimping Lamp-Chimneys; and I do herebydeclare the following to be a full, clear, and exact descriptionthereof, reference being had to the accompanying drawing, forming a partof this specification, in which Figure l is a side elevation of myimproved device for crimping chimneys, the hinged arm carrying thecrimper being thrown back to allow of the flaring of the chimney. Fig. 2is a side elevation with the crimpingarm in a vertical position, andnearly in contact with the flared end of the chimney to be crimped. Fig.3 is a side elevation, partly in section, of my improved snap forholding or clamping the base of the chimney. Fig. 4is a detachedperspective view of the ordinary crimper used in my invention.

My invention consists in an improved apparatus for crimpinglamp-chimneys, and also in an improved snap, by which the chimney isheld during the flaring and crimping operation.

Like letters refer to like parts wherever they occur.

In the drawing, A represents the frame or stand to which the crimpingdevice is attached. This frame may consists of two standards andsuitable cross-pieces. 0n the top of the two standards a a arefriction-wheels a a on which the snap-tool rests during the operation offlaring and crimping.

B is a sliding arm, extending horizontally from the standard a of theframe A, and is provided with a spring or similar device, b, whichcauses the arm B to return to its primary position after it has beendrawn in toward the frameA through the box or bearing b b is a stop,which prevents the arm B from being thrown out of the bearing b by thespring b.

D is alever or treadle, to which is fastened a strap or cord, 01, whichpasses up from the treadle to the block, staple, or eye (1 which blockis fastened to the standard a of the frame A. The cord thence passes innearly a horizontal line to the arm 0,. which is hinged to the outer endof the spring-arm B. At the other extremity of the arm 0 is fastened thecrimper (of the ordinary construction) E, by a screw, 6. The arm 0 isprovided with a vertical slot, through which the screw e passes, therebygetting a vertical adjustment of the crimper E.

G is an improved snap-tool, which consists of a hollow-tube, 9, throughwhich passes a rod, 9 At one end of this red are fastened two rings oreyes, 8, through which pass the springarms 9 At the .outer end thesespring-arms are provided with clamping -jaws 9 The clamping-jaws 9 maybe drawn together by pushing the rod 9 into the tube g. They may then beplaced inside of the base of a lampchimney, but when the pressure isremoved from the rod the spring-arms cause the jaws to separate andpress against the inside of the chimney.

I will now proceed to describe my invention, so that others skilled inthe art to which it appertains may manufacture and use the same.

After the chimney has been blown, it is placed on the snap Ur in themanner above described. The snap with the chimney attached is thenplaced on the friction-bearings a and a upon which it is then rotated,while the chimney is being flared by the ordinary tools. After theflaring operation is finished, the lever or treadle D is pressed by thefoot, which causes the arm 0 to rise up to a vertical position, thecrimper E facing the flared end of the chimney. The arm 0, being drawnup by the cord (1, is prevented from passing the vertical position bythe face of the end of the rod B, which acts as a stop, and the lever,being further depressed, causes the arm 0 to press against the end ofthe arm B, thus moving it in its bearing b, and causing the crimper E topress against the flared end of the chimney, and crimp it. The foot isthen removed from the lover I), the spring b causes the arm B, whichcarries the arm 0 to return to its primary position, and thus thecrimper is drawn away from the chimney, and the arm (3 falls to nearly ahorizontal position, as at first. The chimney is then removed from thesnap.

What I claim as my invention, and desire crimping-tool, operated byalever for the purto secure by Letters Patent, is-

1. The snap-tool having clamping-jaws attached to spring arms, whichpress outwardly, in combination with the rod furnished with loops forcontracting and releasing them.

2. The combination of the sliding arm with its spring, and the hingedarm carrying the pose hereinbefore set forth.

In testimony whereof, I the said ANDREW HAROUM, have hereunto set myhand.

ANDREW HAROUM. Witnesses:

JAMES I. KAY, GEORGE H. UHRISTY.

